单层MoSe2超快非线性光学响应数据集

本项目研究了化学气相沉积（CVD）生长的单层MoSe2在720-810 nm波长范围内的非线性吸收。尽管存在强激子共振，单层MoSe2表现出均匀的调制深度和饱和强度。 此外，进行泵浦探测光谱以确认可饱和吸收并揭示数百皮秒的光载流子弛豫动力学。 我们的结果揭示了单层MoSe2在超快激发下的独特宽带非线性吸收行为，并突出了使用单层TMD作为具有可定制可饱和吸收特性的宽带超快光开关的潜力。

This study investigates the nonlinear absorption of chemical vapor deposition (CVD)-grown monolayer MoSe2 within the 720–810 nm wavelength range. Despite the presence of strong exciton resonances, monolayer MoSe2 exhibits uniform modulation depth and saturation intensity. Furthermore, pump-probe spectroscopy was conducted to confirm saturable absorption and reveal the photo-carrier relaxation dynamics with a timescale of hundreds of picoseconds. Our results reveal the unique broadband nonlinear absorption behavior of monolayer MoSe2 under ultrafast photoexcitation, and highlight the potential of using monolayer TMDs as broadband ultrafast optical switches with customizable saturable absorption properties.

搜集汇总

背景与挑战

背景概述

该数据集研究了单层MoSe2在720-810 nm波长范围内的非线性吸收特性，揭示了其均匀的调制深度和饱和强度，以及数百皮秒的光载流子弛豫动力学。这些发现展示了单层MoSe2作为宽带超快光开关材料的潜力。数据集包含36个文件，总大小为26.6MB。